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Finding the Fourth Proportional to 431,190.44, 595,061.16 and 240,203.78

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Solution

The fourth proportional to 431,190.44, 595,061.16 and 240,203.78 is: 331,491.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,190.44 : 595,061.16 = 240,203.78 : x
  2. Step 2: Convert to fraction form
    431,190.44/595,061.16 = 240,203.78/x
  3. Step 3: Cross multiply
    431,190.44x = 595,061.16 × 240,203.78
  4. Step 4: Simplify right side
    431,190.44x = 142,935,939,963.19
  5. Step 5: Solve for x
    x = 142,935,939,963.19/431,190.44
  6. Step 6: Final answer
    x = 331,491.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.